Articles | Volume 14, issue 1
The Cryosphere, 14, 17–37, 2020
https://doi.org/10.5194/tc-14-17-2020
The Cryosphere, 14, 17–37, 2020
https://doi.org/10.5194/tc-14-17-2020
Research article
09 Jan 2020
Research article | 09 Jan 2020

Exploring mechanisms responsible for tidal modulation in flow of the Filchner–Ronne Ice Shelf

Sebastian H. R. Rosier and G. Hilmar Gudmundsson

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Latest update: 19 May 2022
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Short summary
The flow of ice shelves is now known to be strongly affected by ocean tides, but the mechanism by which this happens is unclear. We use a viscoelastic model to try to reproduce observations of this behaviour on the Filchner–Ronne Ice Shelf in Antarctica. We find that tilting of the ice shelf explains the short-period behaviour, while tidally induced movement of the grounding line (the boundary between grounded and floating ice) explains the more complex long-period response.